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Dec. 22,1925. 6 1,566,631

, T. E. STURTEVANT FILE DRIVING AND PULLING MECHANISM Filed March 27,1922 2 Sheets-Sheet 1 '16 t) 7:411:21 E i I i a a F '3 15' I .1 l l' I.2 l l f-""' J3 Z0 I l R 1 'Z/ hf ll 1 Z! 14 6 avwev-toz mamasE.5turtevant.

' any of the parts and without Patented Dec. 22, 1925.

UNITED STATES PAT'EVTVVOFVFICE.

THOMAS E. sTUETEvaNT, 0E DOVER, nEw JERSEY, ASSIGNOR o McKIERNAN-TERRYDRILL COMPANY, OF novEIun-Ew JERSEY, A CORPORATION OF NEW JE EsEY.

PILE DRIVING A DEUL ING MECHANISM.

'Application filed. March 27, 1922. Serial No. 547,168.

To all whom it may concern:

VAN a citizen of the United States, and a resident ofDover, county ofMorris and State of New Jersey have invented certain new and usefulImprovements in Pile Driv- The inventionmore particularly relates toconcrete pile construction. In such constructions a pipe having a plugclosing its lower end is driven by a pile driver and 1s then withdrawnleaving th plug and concrete is poured. into the hole.

This invention has for its object to provide apparatus by means of whichconcrete can be poured during'the withdrawal of the pipe. Another objectof the invention is to provide a pile driving and pulling mechanism soconstructed and arranged that the change from driving topulling and viceversa can be made without disconnecting or reversing change in the valvemechanism.

Another object of the invention is to provide a device of the characterdescribed that can easily and quickly be changed from a driving to apulling rig. 7

Further objects of the invention will appear from the followingdescription taken in connection with the drawings which form a partofthis application and inwhich- Fig. 1 is an elevation of a driving andpulling rig constructed in accordance with my invention and showing theparts in driving position.

Fig. -2 is an elevation of the construction shown in Fig. 1 but showingthe parts} in position for pullingor withdrawing a pile.

Fig. 3 is an elevational view taken at right angles to Fig. 2.

Fig. 4 is a longitudinal sectional elevation of the construction shownin Fig. 1.

Fig. 5 is a longitudinal sectional elevation of the construction shownin Fig. 2, and

Fig. 6 is a longitudinal view of the structure shown in Fig. 3.

Fig. 7 is a transverse sectional elevation taken upon line 77 of Fig. 4.

The invention may be briefly described as comprising a vibratory hammer,means for suspending the hammer and a pair of anvils supported at theopposite ends of the hammer .Be it known that. I, THOMAS E. STURTE-V apile;

are slidably supported between the bars 12. v

The pile driving and pulling mechanism comprises the cylinderblock'13mounted on the straps 10 and formed by the blocks 12 and enclosing apiston or hammer 14:. 15 is valve mechanism for controlling theadmission and exhaust of the motive fluid.

An anvil 16 is mounted on trunnions 17 at the upper ends of the slidablelinks 13 and opposite one end of the piston lfand an anvil 18 is mountedon trunnions 19 at the other end of the piston and in the'opposite endsofthe links 13. The anvils 16 and 18 are slidablymounted between theupper and lower ends respectively of the blocks 12.

The lower ends of the links 13 are connected by a pair of links 20 totrunnions 21 formed on a clamping 'collar22 which is means connectingthe anvils to The parts are'so constructed and arranged that the hammer"and anvils are movable in such a waythat the secured by wedge 23 to thepile or pipe 24. j

pivoted are provided with longitudinal slots 26 which receive thetrunnions 21 and the function of these slots will be clear from thedescription of the operation of thedevice. In Fig. 1 the rig is shownwith the parts driving position and from this showing it will be seenthat the Vibration of the hammer or piston 14' will cause it to engagethe anvil 18 which is positioned on top of the collar 25 carried by. theupper end of the pipe and extends into the cylinder 13 a'sufl'icientdistance to be engaged by the piston or hammer 14. The pipe 'willtherefore be driven as the hammer vibrates.

When the device is to be used as a lifting rig the straps or suspensionmeans 10 are drawn upwardly to the position shown in whereas in Fig. '1

Figs, 2 and 3 in which position or piston 14: will engage the upperanvil 16 and because of its movement relative to the lower anvil thehammer will not engage the lowerv anvil. It will also be noted that inthis position of the parts the trunnions 21 are disposed at thelowerends of the slots 26 with the anvil 18 lowered to engage the top of thepipe or collar the trunnions are disposed adjacent the upper ends; ofthe slots, a slight clearance being provided inthe slots beyond thetrunnions,

In order to more clearly indicate the limits ofmovementof the piston theupper and I links 13 and subsequently-causes amovement lower limits ofits movements have been indicated by dot and dash ,linesin Figs. 1 and2.

It should be noted that in changing from pulling to driving the loweringof the suspension means will first etlect a relative movement of thecylinder and piston in the of thalinks thereby positioning the loweranvil 18 on the upper end of the pipe collar 25.

From the foregoing description it will be seen that by simple,longitudinal movement of thestraps or suspension means 10 the rig may bechanged from a driving to a lifting device or vice versa; and that it isnot necessary to disconnect, invert or otherwise rearrange the elements.

Although one specific embodiment of the invention has beenpa-rticularlyshown and described, it will be understood that the invention is capableof modification and that changes inthe construction and arrangement ofthe various cooperating partsinay be made without departing from thespirit or scope of the invention as expressed in thefollowing claims.

;\Vhat I claim is 1. Ina device for driving and pulling piles, areciprocatory pile hammer, a pair of anvil blocks disposed at theopposite ends of the hammer and means for relatively slidably adjustingthe blocks and hammer to bring either block into the range; of thehammer.

2. In piles, a pair. of relatively slidable sections, one sectioncarrying a vibratory hammer and the other section'carrying a pair ofanvils selectively engageable by said hammer and means for connectingthe anvil carrying section to a pile.

the hammer a device for. driving or pulling .3. In a device for drivingorpulling piles, a pair of relatively slidable sections, .one sectioncarrying a vibratory hammer and the other section carrying a pair ofanvils disposed at the opposite end-s of and selectively engageableloysaid hammer and means for connecting the anvil carrying'section to apile.

a. In a device for driving or pulling piles, suspension means,

a vibratory hammer carried thereby, a pair of anvils disposed atopposite ends of the hammer, and means for connecting the anvilsto apile, said hammer being slidable with reference to the anvils wherebyeither anvil may be engaged there by. I V V j I 5. In a devicefortdriving or pulling piles, suspension means, a vibratory hammercaried thereby, a pair 0f anvils disposed at opposite ends of thehammer, and straps for connecting the anvils' toi .:a1pi'le,f mer beingslidable with reference, to the anvils whereby either. anvil maybe-engaged thereby. I I Y 6. In a device for driving or pulling piles,suspension means, a vibratory hammer carried thereby, a pair of anvilsdisposed at opposite ends of the hammer, and straps slidably mounted insa idsuspension means for connecting the anvils to a pile, said hammerbeing slidable with reference to the anvils whereby either anvil may beengaged thereby. 1, I

7. In a device. for driving andpulling piles, a cylinder, a pistontherein, an anvil at each end of the piston, means for connecting saida-nvils :to a pile, said connecting means being slidable relative to thecylinder and piston to bring either anvil into the cylinder and in aposition tobe engaged by the piston' 8. In a device for driving andpulling means, a vibratory hammer piles, suspension links slidable withrespect carried thereby,

said ha-mto said suspension means,a pair of anvils 7 downward movementwill bring the lower anvil in contact with the pile. a In witnesswhereof, I have hereunto set my hand this 24 dayof March, 1922.

THOMAS n'srUnrnvANr,

